Traces of Time by Pat Murphy and Paul Doherty Photographs by William Neill A guide to seeing the effects of time on the world. From the daily opening and closing of a California poppy, through the yearly growth rings of trees, to the million year long cooling of magma to form the large crystals in the granite of Tuolumne meadows.

In Print

Glove Compartment Science   A Klutz/Exploratorium Guide to science on the road. Developed by Paul Doherty and Pat Murphy.

Colors of Nature by Pat Murphy and Paul Doherty Chronicle Books

Zap Science: A Scientific Playground in a Book By John Cassidy, Paul Doherty and Pat Murphy Winner of the Scientific American Young Readers Book award.

The Klutz Book of Magnetic Magic by Paul Doherty and John Cassidy Ten Magnets, 50 Brazilian Centavos, dozens of magnetic science and magic activities,many in print for the first time. Winner of the Scientific American Young Readers Book Award

Explorabook: A Kids' Science Museum in a Book by the Irish Triumvirate: John Cassidy, Paul Doherty and Pat Murphy More than a million copies sold Winner of the Scientific American Young Readers Book award.